In the NFL, players who have been chosen as team captains frequently sport a "C" badge on their shirts. The "C" patch is worn on the upper right corner of the jersey and signifies that the player has been designated as a team captain. The patch is in team colors and can be placed on either the front right or left breast based on other patches and other accessories worn by the particular squad. The number of stars under the "C" signifies the number of years a player has been a captain, with each star representing one year of service. The stars are changed from white to gold for each year the player has been a captain with that franchise, and when a player reaches five years of service, he gets a gold "C" with four gold stars underneath. The volume of gold stars on the patch denotes the duration of the players captaincy. The NFL began formally acknowledging team captains in 2007, authorizing up to six members per club to wear the captains "C" on their shirts. Teams can select captains any way they want, and they can be changed at any point during the season.